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http://p30droid.com/topic/7655-%D9%85%D8%B4%DA%A9%D9%84-%D8%AF%D8%B1-build-%DA%A9%D8%B1%D8%AF%D9%86-%D9%80-erorr-sync-failed/
مشکل در Build کردن ـ Erorr : sync failed